Results 11 to 20 of about 944,632 (294)

A Capacitive Quenching Circuit for Use with Single Photon Avalanche Detectors [PDF]

, 2013
In this thesis a Capacitive Quenching Circuit (CQC) is modelled using Linear Technology's Simulation Program with Integrated Circuit Emphasis (LT SPICE). Key components are optimised and the entire circuit is modelled. Once satisfied with the simulation,
Goldberg, Graham R
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The Future Arrived: Photon-Counting Detector CT. [PDF]

, 2023
In the past decades, we have witnessed tremendous technical innovations in computed tomography (CT) imaging. These included improvements in temporal and spatial resolution, lowering of the radiation dose, the introduction of dual-energy and multi-energy ...
Runge, Val, Alkadhi, Hatem, Alkadhi, Hatem; https://orcid.org/, Hatem Alkadhi, Val Runge   +4 more
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Measurement of isolated-photon pair production in pp collisions at s√=7TeV with the ATLAS detector [PDF]

, 2013
The ATLAS experiment at the LHC has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at s√=7TeV . The full data set collected in 2011, corresponding to an integrated luminosity of 4.

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Investigation on X-ray Photocurrent Response of CdZnTe Photon Counting Detectors

Sensors, 2020
Counting rate is an important factor for CdZnTe photon counting detectors as high-flux devices. Until recently, there has been a lack of knowledge on the relationship between X-ray photocurrent response and the photon counting performance of CdZnTe ...
Yingrui Li, Gangqiang Zha, Yu Guo, Shouzhi Xi, Lingyan Xu, Wanqi Jie   +5 more
doaj   +1 more source

Hard X-ray full-field nanoimaging using a direct photon-counting detector

Journal of Synchrotron Radiation, 2023
Full-field X-ray nanoimaging is a widely used tool in a broad range of scientific areas. In particular, for low-absorbing biological or medical samples, phase contrast methods have to be considered.
Silja Flenner, Johannes Hagemann, Felix Wittwer, Elena Longo, Adam Kubec, André Rothkirch, Christian David, Martin Müller, Imke Greving   +8 more
doaj   +1 more source

Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths [PDF]

, 2013
Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector ...
Dorenbos, SN, Walmsley, IA, Natarajan, C.M., Zwiller, V, Walmsley, I.A. (author), Hadfield, R.H. (author), Coldenstrodt-Ronge, H, Zhang, L. (author), Zwiller, Val, Coldenstrodt-Ronge, H. (author), Natarajan, C.M. (author), Natarajan, Chandra M, Zwiller, V., Walmsley, Ian, Dorenbos, S.N. (author), Zhang, Lijian, Zhang, L., Dorenbos, S.N., Hadfield, R., Zwiller, V. (author), Donati, G. (author), Donati, Gaia, Natarajan, CM, Walmsley, Ian A., Coldenstrodt-Ronge, Hendrik, Walmsley, I.A., Hadfield, Robert H, Hadfield, R.H., Dorenbos, Sander N., Donati, G., Donati, G, Zhang, L, Hadfield, RH, Coldenstrodt-Ronge, H.   +33 more
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Single photon source characterization with a superconducting single photon detector [PDF]

, 2005
Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P., Nam, S.W., Gruber, S.S., Miller, A.J., Stevens, M.J., Hadfield, R., Schwall, R.E.   +6 more
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Superconducting nanowire single-photon detectors: physics and applications [PDF]

, 2012
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths.
Hadfield, Robert H, Natarajan, C.M., Natarajan, Chandra M, Tanner, M.G., Hadfield, R., Tanner, Michael Geoffrey; id_orcid   +5 more
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Analysis of detector performance in a gigahertz clock rate quantum key distribution system [PDF]

, 2011
We present a detailed analysis of a gigahertz clock rate environmentally robust phase-encoded quantum key distribution (QKD) system utilizing several different single-photon detectors, including the first implementation of an experimental resonant cavity
Mikio Fujiwara, R. H. Hadfield, Townsend, Paul D., Shigehito Miki, Wang, Zhen, C. M. Natarajan, GHIONI, MASSIMO ANTONIO, Collins, R.J., Garcia-Martinez, Maria-Jose, M. Fujiwara, Robert J Collins, M. Sasaki, Tanner, Michael G.; id_orcid, Patrick J Clarke, Sasaki, M., Wang, Z., R. J. Collins, Chandra M Natarajan, Buller, Gerald S., N. J. Krichel, O'Connor, John A., Gerald S Buller, María-José García-Martínez, García-Martínez, M.-J., Masahide Sasaki, Fujiwara, M., Krichel, N.J., Tanner, M.G., G. S. Buller, Nils J Krichel, Ivan Rech, Hadfield, Robert H., Rech, Ivan, Ghioni, M., Aongus McCarthy, Natarajan, C.M., Rech, I., P. A. Hiskett, Gulinatti, Angelo, Collins, Robert J., Townsend, P., Robert H Hadfield, M. García Martínez, A. McCarthy, P. J. Clarke, Miki, Shigehito, Massimo Ghioni, Angelo Gulinatti, Gulinatti, A., Paul D Townsend, Miki, S., Zhen Wang, S. Miki, Buller, G.S., Hiskett, P.A., Hiskett, Philip A., Fujiwara, Mikio, M. G. Tanner, Hadfield, R., McCarthy, A., John A O'Connor, Natarajan, Chandra M., Michael G Tanner, O'Connor, J.A., Philip A Hiskett, McCarthy, Aongus, Ghioni, Massimo, Z. Wang, P. D. Townsend, Krichel, Nils J., J. A. O'Connor, Clarke, P.J., Clarke, Patrick J., Sasaki, Masahide   +73 more
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Ge-on-Si single-photon avalanche diode detectors: design, modeling, fabrication, and characterization at wavelengths 1310 and 1550 nm [PDF]

, 2013
The design, modeling, fabrication, and characterization of single-photon avalanche diode detectors with an epitaxial Ge absorption region grown directly on Si are presented.
Lever, LJM, Paul, D.J., Buller, GS, Ikonic, Zoran, Warburton, Ryan E, Ikonic, Z, Myronov, Maksym, Knights, AP, Leadley, D. R. (David R.), Gallacher, Kevin, Kelsall, Robert W., Pilgrim, Neil J, Pilgrim, NJ, Paul, DJ, Myronov, M., Paul, Douglas J. (Professor of Semiconductor Devices), Allred, P, Intermite, G., Leadley, David R, Huante-Ceron, E, Kelsall, RW, Lever, Leon J M, Pilgrim, Neil J., Kelsall, R.W., Allred, P., Myronov, M, Huante-Ceron, Edgar, Lever, Leon J. M., Lever, L.J.M., Leadley, D.R., Knights, A.P., Knights, Andrew P., Allred, Phil, Ikonic, Z., Huante-Ceron, E., Warburton, RE, Knights, Andrew P, Pilgrim, N.J., Buller, G.S., Intermite, G, Paul, Douglas J, Warburton, Ryan E., Leadley, DR, Intermite, Giuseppe, Gallacher, K, Warburton, R.E., Buller, G. S. (Gerald S.), Kelsall, Robert W, Buller, Gerald Stuart   +48 more
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